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Finding the Fourth Proportional to 19,697.88, 27,298.08 and 19,324.07

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Solution

The fourth proportional to 19,697.88, 27,298.08 and 19,324.07 is: 26,780.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,697.88 : 27,298.08 = 19,324.07 : x
  2. Step 2: Convert to fraction form
    19,697.88/27,298.08 = 19,324.07/x
  3. Step 3: Cross multiply
    19,697.88x = 27,298.08 × 19,324.07
  4. Step 4: Simplify right side
    19,697.88x = 527,509,893.14
  5. Step 5: Solve for x
    x = 527,509,893.14/19,697.88
  6. Step 6: Final answer
    x = 26,780.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.